diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..f567020
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+.env
+config.toml
diff --git a/Cargo.lock b/Cargo.lock
index 890a580..11a76b3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2452,6 +2452,7 @@ dependencies = [
  "itertools 0.10.5",
  "jsonrpsee-types",
  "once_cell",
+ "openssl",
  "reqwest 0.12.4",
  "serde",
  "serde_derive",
@@ -2856,6 +2857,15 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
+[[package]]
+name = "openssl-src"
+version = "300.2.3+3.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5cff92b6f71555b61bb9315f7c64da3ca43d87531622120fea0195fc761b4843"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "openssl-sys"
 version = "0.9.102"
@@ -2864,6 +2874,7 @@ checksum = "c597637d56fbc83893a35eb0dd04b2b8e7a50c91e64e9493e398b5df4fb45fa2"
 dependencies = [
  "cc",
  "libc",
+ "openssl-src",
  "pkg-config",
  "vcpkg",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 5e7aa75..c73bed7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,10 @@ name = "mangorpc-latency-tester"
 version = "0.1.0"
 edition = "2021"
 
+[[bin]]
+name = "mangorpc-latency-tester"
+path = "src/main.rs"
+
 [dependencies]
 solana-sdk = "1.17.31"
 solana-rpc-client-api = "1.17.31"
@@ -37,3 +41,4 @@ solana-program = "1.17.31"
 solana-transaction-status = "1.17.31"
 once_cell = "1.19.0"
 chrono = "0.4.38"
+openssl = { version = "0.10.59", features = ["vendored"] }
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..9c035c1
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM rust:latest as base
+WORKDIR /usr/src/myapp
+COPY Cargo.toml Cargo.lock ./
+RUN cargo fetch
+COPY src ./src
+RUN cargo install --path . --bin mangorpc-latency-tester
+FROM debian:bookworm-slim as run
+RUN apt-get update && apt-get -y install ca-certificates libc6 libssl3 libssl-dev openssl
+COPY --from=0 /usr/local/cargo/bin/mangorpc-latency-tester /usr/local/bin/mangorpc-latency-tester
+CMD ["mangorpc-latency-tester", "watch-measure-send-transaction", "--watch-interval-seconds", "21600"]
diff --git a/README.md b/README.md
index 357720d..44822a2 100644
--- a/README.md
+++ b/README.md
@@ -67,3 +67,14 @@ cargo run watch-measure-send-transaction -- --watch-interval 600
 ```
 
 ![example discord message](discord1.png)
+
+## deployment on fly
+
+install flyctl then...
+
+- `fly apps create`
+- `fly secrets set --config fly.toml KEY="value"` for .env vars
+- `fly deploy --config fly.toml --ha=false --remote-only`
+- `fly status` for status
+- `fly logs` for logs
+
diff --git a/fly.toml b/fly.toml
new file mode 100644
index 0000000..fc3e576
--- /dev/null
+++ b/fly.toml
@@ -0,0 +1,17 @@
+app = "cks-tx-tester"
+primary_region = "ams"
+kill_signal = "SIGTERM"
+kill_timeout = 60
+
+[build]
+dockerfile = "./Dockerfile"
+ignorefile = ".dockerignore"
+
+[deploy]
+strategy = "immediate"
+
+[[vm]]
+size = "performance-2x"
+memory = "4GB"
+cpus = 2
+cpu_kind = "performance"
diff --git a/src/config.rs b/src/config.rs
index 8dcf18c..26f6e0a 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -51,8 +51,11 @@ fn setup_logging() {
 
 pub fn parse_user_key(raw: String) -> Result<Keypair> {
     let byte_strs: Vec<&str> = raw.split(',').collect();
-    let bytes: Result<Vec<u8>, _> = byte_strs.iter().map(|s| s.parse::<u8>()).collect();
-    let user = Keypair::from_bytes(&bytes?)?;
+    let bytes: Vec<u8> = byte_strs
+        .iter()
+        .map(|s| s.parse::<u8>().expect("parses u8"))
+        .collect::<Vec<_>>();
+    let user = Keypair::from_bytes(&bytes)?;
 
     Ok(user)
 }
diff --git a/src/measure_txs.rs b/src/measure_txs.rs
index 49f320a..c499e3e 100644
--- a/src/measure_txs.rs
+++ b/src/measure_txs.rs
@@ -164,6 +164,7 @@ async fn send_and_confirm_self_transfer_tx(
     atomic_slot: Arc<AtomicU64>,
     label: String,
     rpc_client: Arc<RpcClient>,
+    test_client: Arc<RpcClient>,
     recent_blockhash: Hash,
     priority_fee: u64,
     lamports: u64,
@@ -182,10 +183,10 @@ async fn send_and_confirm_self_transfer_tx(
     let tx = Transaction::new(&[&user], message, recent_blockhash);
 
     let slot_sent = atomic_slot.load(Ordering::Relaxed);
-    let signature = rpc_client.send_and_confirm_transaction(&tx).await?;
-    sleep(Duration::from_secs(5)).await;
+    let signature = test_client.send_transaction(&tx).await?;
+    sleep(Duration::from_secs(60)).await;
     let slot_confirmed = rpc_client
-        .get_transaction(&signature, UiTransactionEncoding::Json)
+        .get_transaction(&signature, UiTransactionEncoding::Base64)
         .await?
         .slot;
 
@@ -227,6 +228,7 @@ pub async fn watch_measure_txs(
     }
 
     let rpc_client = RpcClient::new(rpc_url);
+    let rpc_client = Arc::new(rpc_client);
 
     let mut interval = time::interval(Duration::from_secs(watch_interval_seconds));
     let mut slot_diffs_by_label: HashMap<String, Vec<u64>> = HashMap::new();
@@ -245,8 +247,9 @@ pub async fn watch_measure_txs(
         let mut sig_futs = Vec::new();
         let c_by_l = clients_by_label.clone();
         for (i, (label, client)) in c_by_l.iter().enumerate() {
+            let rpc_client = Arc::clone(&rpc_client);
             let label = label.clone();
-            let rpc_client = Arc::clone(client);
+            let test_client = Arc::clone(client);
             let user = Arc::clone(&user);
             let a_slot = Arc::clone(&atomic_slot);
             let fut = send_and_confirm_self_transfer_tx(
@@ -254,6 +257,7 @@ pub async fn watch_measure_txs(
                 a_slot,
                 label,
                 rpc_client,
+                test_client,
                 recent_blockhash,
                 priority_fee,
                 i as u64,